It would have been easy enough for anyone to have figured out who cleaned the office and I'm sure you'd have cracked under the pressure when they lined everyone up and questioned them. Besides, I'm sure they'd have gotten your finger prints off the dial and you'd have been back in the slammer only this time it would be justified. What if old man Kuykendahl keeled over with a coronary when he discovered you had taken all of his employees payroll money? What if someone else were blamed instead of you.
Doing the right thing is never stupid no matter how tempting it might be to rationalize doing the wrong thing.